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Finding the Fourth Proportional to 180,728.60, 271,095.62 and 47,622.30

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Solution

The fourth proportional to 180,728.60, 271,095.62 and 47,622.30 is: 71,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,728.60 : 271,095.62 = 47,622.30 : x
  2. Step 2: Convert to fraction form
    180,728.60/271,095.62 = 47,622.30/x
  3. Step 3: Cross multiply
    180,728.60x = 271,095.62 × 47,622.30
  4. Step 4: Simplify right side
    180,728.60x = 12,910,196,944.33
  5. Step 5: Solve for x
    x = 12,910,196,944.33/180,728.60
  6. Step 6: Final answer
    x = 71,434.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.